Merge remote-tracking branch 'origin/40-build-add-spack-package-recipe' into staging

Author: steven varga

spack/README.md

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+# Spack Package for h5cpp-compiler
+
+This directory contains a custom Spack repository with the `h5cpp-compiler` package recipe.
+
+## Adding the repository
+
+```bash
+spack repo add /path/to/h5cpp-compiler/spack
+```
+
+## Installing the package
+
+```bash
+spack install h5cpp-compiler
+```
+
+## Notes
+
+- The recipe depends on `llvm +clang` because h5cpp-compiler uses Clang LibTooling.
+- CMake 3.14+ and Ninja are required at build time.
+- Tests are disabled during the Spack build (`H5CPP_BUILD_TESTS=OFF`).

spack/packages/h5cpp-compiler/package.py

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+# Copyright 2013-2024 Lawrence Livermore National Security, LLC and other
+# Spack Project Developers. See the top-level COPYRIGHT file for details.
+#
+# SPDX-License-Identifier: (Apache-2.0 OR MIT)
+
+from spack.package import *
+
+
+class H5cppCompiler(CMakePackage):
+    """h5cpp-compiler is a CLI build-time tool that uses LLVM/Clang LibTooling
+    to generate HDF5 C++ bindings from annotated source code.
+    """
+
+    homepage = "https://github.com/vargalabs/h5cpp-compiler"
+    git = "https://github.com/vargalabs/h5cpp-compiler.git"
+    url = "https://github.com/vargalabs/h5cpp-compiler/archive/refs/tags/v1.12.6.tar.gz"
+
+    maintainers("steven-varga")
+
+    license("MIT", checked_by="steven-varga")
+
+    version("1.12.6", sha256="c5f5829cec4908ad93647c17f27d0a82b75a5413fcad8c99232ba2034d0149a2")
+    version("1.12.5", sha256="f8990bcbfe90a037b66535c36d6e06e7451491c4cdc9c6fae4dfc15d1b3812be")
+    version("1.12.4", sha256="77461c9a482c5460a246724a479c803b011a6f95b94801493816d2c3ca70c732")
+    version("1.12.3", sha256="d7eefa490746b361e83df166f50ea9133919224e5e81f893ad4e41176d310371")
+
+    depends_on("cmake@3.14:", type="build")
+    depends_on("ninja", type="build")
+
+    # The project targets LLVM 20 and requires the Clang component (LibTooling).
+    # Spack's llvm package provides clang via the +clang variant.
+    depends_on("llvm +clang")
+
+    def cmake_args(self):
+        args = [
+            self.define("H5CPP_BUILD_TESTS", "OFF"),
+        ]
+        return args

spack/repo.yaml

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+repo:
+  namespace: vargalabs